The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2025
Filed:
Oct. 27, 2023
Shohtaroh Sohma, Osaka, JP;
Shohtaroh Sohma, Osaka, JP;
Abstract
An isolated switching power supply circuit is compact, high-efficiency, and low noise. It includes a transformer Twhich has a primary winding wound with NP turns and a secondary winding wound with NS turns, a drive switch Qand an active clamp switch Qconfiguring a primary side half-bridge, a boost capacitor CBULKthat charges a discharge energy of the transformer, rectifier diodes Dand Dconnected in series, a tank capacitor CT, and an output capacitor COUT. A secondary side winding voltage, when the drive switch Qor the active clamp switch Qis on, is held in the tank capacitor CT, and by superimposing the secondary winding voltage, when the drive switch Qor the active clamp switch Qis off, on the voltage held in the tank capacitor CT, the configuration is such that output voltage VOUT equals boosted voltage VBULK times (NS divided by NP).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile